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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/11302

Title: Efficiency at Maximum Power of Low-Dissipation Carnot Engines
Authors: Esposito, Massimiliano
KAWAI, Ryoichi
Lindenberg, Katja
VAN DEN BROECK, Christian
Issue Date: 2010
Publisher: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW LETTERS, 105(15)
Abstract: We study the efficiency at maximum power, eta*, of engines performing finite-time Carnot cycles between a hot and a cold reservoir at temperatures T-h and T-c, respectively. For engines reaching Carnot efficiency eta(C) = 1 - T-c/T-h in the reversible limit (long cycle time, zero dissipation), we find in the limit of low dissipation that eta* is bounded from above by eta(C)/(2 - eta(C)) and from below by eta(C)/2. These bounds are reached when the ratio of the dissipation during the cold and hot isothermal phases tend, respectively, to zero or infinity. For symmetric dissipation (ratio one) the Curzon-Ahlborn efficiency eta(CA) = 1 - root T-c/T-h is recovered.
Notes: [Esposito, Massimiliano] Univ Libre Bruxelles, Ctr Nonlinear Phenomena & Complex Syst, B-1050 Brussels, Belgium. [Kawai, Ryoichi] Univ Alabama, Dept Phys, Birmingham, AL 35294 USA. [Lindenberg, Katja] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA. [Lindenberg, Katja] Univ Calif San Diego, BioCircuits Inst, La Jolla, CA 92093 USA. [Van den Broeck, Christian] Hasselt Univ, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/11302
DOI: 10.1103/PhysRevLett.105.150603
ISI #: 000282641900001
ISSN: 0031-9007
Category: A1
Type: Journal Contribution
Validation: ecoom, 2011
Appears in Collections: Research publications

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